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We propose a new supervized learning framework for oversegmenting 3D point clouds into superpoints. We cast this problem as learning deep embeddings of the local geometry and radiometry of 3D points, such that the border of objects presents…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Loic Landrieu , Mohamed Boussaha

LiDAR point cloud semantic segmentation enables the robots to obtain fine-grained semantic information of the surrounding environment. Recently, many works project the point cloud onto the 2D image and adopt the 2D Convolutional Neural…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Yu Zheng , Guangming Wang , Jiuming Liu , Marc Pollefeys , Hesheng Wang

Conventional point cloud semantic segmentation methods usually employ an encoder-decoder architecture, where mid-level features are locally aggregated to extract geometric information. However, the over-reliance on these class-agnostic…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Ziyi Wang , Yongming Rao , Xumin Yu , Jie Zhou , Jiwen Lu

We propose a novel fast and robust 3D point clouds segmentation framework via coupled feature selection, named 3DCFS, that jointly performs semantic and instance segmentation. Inspired by the human scene perception process, we design a…

Robotics · Computer Science 2020-03-03 Liang Du , Jingang Tan , Xiangyang Xue , Lili Chen , Hongkai Wen , Jianfeng Feng , Jiamao Li , Xiaolin Zhang

Semantic segmentation is an important and well-known task in the field of computer vision, in which we attempt to assign a corresponding semantic class to each input element. When it comes to semantic segmentation of 2D images, the input…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Ivan Martinović

3D semantic segmentation on multi-scan large-scale point clouds plays an important role in autonomous systems. Unlike the single-scan-based semantic segmentation task, this task requires distinguishing the motion states of points in…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Jiahui Liu , Chirui Chang , Jianhui Liu , Xiaoyang Wu , Lan Ma , Xiaojuan Qi

3D object detection has achieved remarkable progress by taking point clouds as the only input. However, point clouds often suffer from incomplete geometric structures and the lack of semantic information, which makes detectors hard to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Hao Yang , Chen Shi , Yihong Chen , Liwei Wang

Multi-sensor fusion-based road segmentation plays an important role in the intelligent driving system since it provides a drivable area. The existing mainstream fusion method is mainly to feature fusion in the image space domain which…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Haoran Li , Yaran Chen , Qichao Zhang , Dongbin Zhao

With the development of 3D and 2D data acquisition techniques, it has become easy to obtain point clouds and images of scenes simultaneously, which further facilitates dual-modal semantic segmentation. Most existing methods for…

Computer Vision and Pattern Recognition · Computer Science 2024-09-23 Qiulei Dong , Jianan Li , Shuang Deng

3D object recognition has attracted wide research attention in the field of multimedia and computer vision. With the recent proliferation of deep learning, various deep models with different representations have achieved the…

Computer Vision and Pattern Recognition · Computer Science 2018-08-24 Haoxuan You , Yifan Feng , Rongrong Ji , Yue Gao

Unsupervised domain adaptation (UDA) in 3D segmentation tasks presents a formidable challenge, primarily stemming from the sparse and unordered nature of point cloud data. Especially for LiDAR point clouds, the domain discrepancy becomes…

Computer Vision and Pattern Recognition · Computer Science 2024-09-24 Xidong Peng , Runnan Chen , Feng Qiao , Lingdong Kong , Youquan Liu , Yujing Sun , Tai Wang , Xinge Zhu , Yuexin Ma

Image analysis using more than one modality (i.e. multi-modal) has been increasingly applied in the field of biomedical imaging. One of the challenges in performing the multimodal analysis is that there exist multiple schemes for fusing the…

Computer Vision and Pattern Recognition · Computer Science 2018-06-19 Zhe Guo , Xiang Li , Heng Huang , Ning Guo , Quanzheng Li

The semantic segmentation of point clouds is an important part of the environment perception for robots. However, it is difficult to directly adopt the traditional 3D convolution kernel to extract features from raw 3D point clouds because…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Guangming Wang , Yehui Yang , Huixin Zhang , Zhe Liu , Hesheng Wang

As a fundamental part of computational healthcare, Computer Tomography (CT) and Magnetic Resonance Imaging (MRI) provide volumetric data, making the development of algorithms for 3D image analysis a necessity. Despite being computationally…

Image and Video Processing · Electrical Eng. & Systems 2023-07-26 C. I. Ugwu , S. Casarin , O. Lanz

Convolutional neural networks are state-of-the-art for various segmentation tasks. While for 2D images these networks are also computationally efficient, 3D convolutions have huge storage requirements and require long training time. To…

Computer Vision and Pattern Recognition · Computer Science 2019-08-06 Christoph Angermann , Markus Haltmeier , Ruth Steiger , Sergiy Pereverzyev , Elke Gizewski

3D point cloud semantic segmentation is one of the fundamental tasks for environmental understanding. Although significant progress has been made in recent years, the performance of classes with few examples or few points is still far from…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Shoumeng Qiu , Feng Jiang , Haiqiang Zhang , Xiangyang Xue , Jian Pu

Multiple object tracking (MOT) is a significant task in achieving autonomous driving. Traditional works attempt to complete this task, either based on point clouds (PC) collected by LiDAR, or based on images captured from cameras. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Guangming Wang , Chensheng Peng , Jinpeng Zhang , Hesheng Wang

3D point cloud segmentation aims to assign semantic labels to individual points in a scene for fine-grained spatial understanding. Existing methods typically adopt data augmentation to alleviate the burden of large-scale annotation.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Hongbin Lin , Yifan Jiang , Juangui Xu , Jesse Jiaxi Xu , Yi Lu , Zhengyu Hu , Ying-Cong Chen , Hao Wang

Existing methodologies in open vocabulary 3D semantic segmentation primarily concentrate on establishing a unified feature space encompassing 3D, 2D, and textual modalities. Nevertheless, traditional techniques such as global feature…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Ziyi Wang , Yanbo Wang , Xumin Yu , Jie Zhou , Jiwen Lu

Efficient transmission of 3D point cloud data is critical for advanced perception in centralized and decentralized multi-agent robotic systems, especially nowadays with the growing reliance on edge and cloud-based processing. However, the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Nikolaos Stathoulopoulos , Christoforos Kanellakis , George Nikolakopoulos